/* Tests to check the utilization of addc, subc and negc instructions in special cases. If everything works as expected we won't see any movt instructions in these cases. */ /* { dg-do compile } */ /* { dg-options "-O1" } */ /* { dg-skip-if "" { "sh*-*-*" } { "-m5*"} { "" } } */ /* { dg-final { scan-assembler-times "addc" 4 } } */ /* { dg-final { scan-assembler-times "subc" 3 } } */ /* { dg-final { scan-assembler-times "sett" 5 } } */ /* { dg-final { scan-assembler-times "negc" 1 } } */ /* { dg-final { scan-assembler-not "movt" } } */ int test_00 (int a, int b, int c, int d) { /* 1x addc, 1x sett */ return a + b + 1; } int test_01 (int a, int b, int c, int d) { /* 1x addc */ return a + (c == d); } int test_02 (int a, int b, int c, int d) { /* 1x subc, 1x sett */ return a - b - 1; } int test_03 (int a, int b, int c, int d) { /* 1x subc */ return a - (c == d); } int test_04 (int a, int b, int c, int d) { /* 1x addc, 1x sett */ return a + b + c + 1; } int test_05 (int a, int b, int c, int d) { /* 1x subc, 1x sett */ return a - b - c - 1; } int test_06 (int a, int b, int c, int d) { /* 1x negc */ return 0 - a - (b == c); } int test_07 (int *vec) { /* Must not see a 'sett' or 'addc' here. This is a case where combine tries to produce 'a + (0 - b) + 1' out of 'a - b + 1'. */ int z = vec[0]; int vi = vec[1]; int zi = vec[2]; if (zi != 0 && z < -1) vi -= (((vi >> 7) & 0x01) << 1) - 1; return vi; } int test_08 (int a) { /* 1x addc, 1x sett */ return (a << 1) + 1; }